From 8b95e77770e95b2635a8293f81f46bbb4f34b708 Mon Sep 17 00:00:00 2001
From: ucwong <ucwong@126.com>
Date: Fri, 5 Jan 2024 03:53:25 +0800
Subject: [PATCH] p2p/simulations : avoid duplicate unsubscribe

---
 p2p/simulations/network_test.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/p2p/simulations/network_test.go b/p2p/simulations/network_test.go
index 4ed1e4e6c3..dad67d21ad 100644
--- a/p2p/simulations/network_test.go
+++ b/p2p/simulations/network_test.go
@@ -76,7 +76,11 @@ func TestSnapshot(t *testing.T) {
 	// subscribe to peer events
 	evC := make(chan *Event)
 	sub := network.Events().Subscribe(evC)
-	defer sub.Unsubscribe()
+	defer func() {
+		if !sub.Closed() {
+			sub.Unsubscribe()
+		}
+	}()
 
 	// connect nodes in a ring
 	// spawn separate thread to avoid deadlock in the event listeners